This high quality worm is copied exactly from an original. It is full size, and the points are sharp enough to easily grab that lost patch. It fits nicely into both .69 and .75 caliver barrels. The thread is #10-32 and is the same as both the Italian models and the new Godwins replacement ramrods we are producing with the lifetime guarantee. If you have a Japanese Bess or Japanese Charleville you will need either the #341 or #342 adaptor to fit this worm.